Lease-controlled stop-motion for looms.



J. M. YUILL, LEASE CONTROLLED STOP MOTION FOR LOOMS.

APPLIOATION FILED OCT. 9, 1908.

I 929,811 Patented Aug. 3, 1909.

Mzeases, l -we 6%) UNITED STATES PATEN OFFICE;

JAMES M. YUILL, OFMANOHESTER, NEW HAMPSHIRE, ASSIGNOR T O- DRARER COMPANY, OF

HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

LEASE-CONTROLLED STOP-ED TION FOR LOOKS.

Specification of Letters Patent.

Patented Aug. 3, 1909.

"Application filed October 9, 1908. Serial No. 456,920.

connection with the accompanying drawing;

is a specification, like characters on the drawing representing like parts.

This invention has for its object the production of an extremely simple stop-motion for looms, controlled by the leasing means,

whereby the loom will be stopped automatically upon the occurrence of a draw in the warp. This term draw is applied to 1 the sticking together of warp-threads back of the leasing means, the sticking or catching being due to the slashing material or to some other cause, a draw tightening the threads improperly and making a bad place in the cloth if not corrected.

My invention is so simple that it can be readily applied to a loom without any matetial change in the leasing means, provided one member of such means is capable of movement longitudinally of the warp when a draw occurs, andwithout the attachment of any additional parts to the loom structure.

Herein I have shown my invention as ap-' plied to a loom in such manner as to cooperate with a warp stop-motion of well known type to effect loom stoppage upon the occurrence of a draw. a

Figure 1 is a transverse section of v a portion of a loom, with my invention applied thereto; Fig. 2 is a perspective view-pl the draw-deteCting means, to more clearly show the simplicity thereof.

Herein I have shown th'e'leasing means as two ordinary lease-rods '1, 2, connected at their ends in usual manner by straps or thongs 3, and limited as to their forward movement by'q-suitable straps 4, the leaserods being located between the harnesses H and whip roll \V- The warps'top-motion herein shown, see

- Fig. 1, islsubstantially such as shown in United States Patent No. 621,310 dated March 14, 1899, each of the detectors (2 cooperating with threads w, w in the two divisions of the warp, and being held normallyby such threads outof the ath of movement of a normally vibrating iee erf.

stoppage of the-feele'rby a dropped detector acts through the link f (by mechanism not shown) to effect release of the shipper S, as in said patent, the lower ends of the detectors being vertically movable behind the usual stop platef In accordance with my present invention Iattach to the back lease-rod 1, at each end thereof a flexible member, preferably a light chain 5, said chains being led forward over the'top of the front lease-rod 2 and over the rounded upper edge of a supporting bar or plate 6, suitably secured at its ends on the com frame and far enough behind the stop plate f to permit a dropped detector to descend freely, the bar or p ate 6 being a component and usual part of such warp stop-motions as herein referred to.

To the free end of each chain 5 I attach a small weight 7, shown as cylindrical, the weights being of such length that normally their lower ends are held above the path of movement of the feelerf. The weights serve as detents or arresters for the feeler, and are normally maintained inoperative, as shown. If now some of the warp threads stick to-' gether so firmly that they will not separate feeler operates to elfect loom stoppage just as if the feeler had been arrested by .a dropped detector. q

The simplicity of the device and its ease of operation will be'mani'fest, and it will be apparent that said device can be arranged to cooperate with any usual form of normally vibrating feeler arranged to effect loom stoppage when arrested.

Y Having fully described my invention, what I claim as new and desire to secure by .Letters Patent is 1. In a loom, leasing means movable in the direction of warp travel upon the occurrence of a draw, a normally vibrating feeler forming part of stopping means for the loom, a feeler-arrester, and a continuous flexible connection between and directly attached at .its ends to said feeler-arrester and leasing means, respectively, to normally maintain said arrester out of the path of the feeler, movement of the leasing means by a draw in the direction of warp travel slackening and-letting ofl' the flexible connection to permit movement of the feelerarrester into the path of and to arrest the ieeler.

2. In a loom, warp-stop-niotion mechanism, including a normally-vibrating l'eeler, and draw-detecting means, comprising a vertically movable weight constituting it feeler-arrester, a, flexible and continuous connection between and directly attached at its encls'to the weight and to a lease-rod of the loom, respectively, and a fixed support for and over which the connection slides and from which it hangs adjacent the weight, the said connection being movable longitudinally in the direction of the weight to position the same in the path of and to arrest the feeler by the occurrence of 2V drew, to effect stoppage of the loom.

In testimony whereof, I have signed 11 y name to this specification, in the presence of two subscribing Witnesses.

JAMES M. YUILL.

Witnesses:

II. A. SALLS, P. H. SILIJVAN. 

